Channel Stability

kinmel · Jun 10, 2010, 20:12:18

Quote from: Polchraine on Jun 10, 2010, 20:06:51
It will be interesting as they should all see each other and if the comment above is correct, recognize interference and three of the four change. It will be interesting to see what happens over night.

Sorry they are not all at the one place.

However 3 others are here as spares, so I can have them running, but not connected to BT and see if they change at all

Polchraine · Jun 10, 2010, 20:18:27

Quote from: kinmel on Jun 10, 2010, 20:12:18
Sorry they are not all at the one place.

However 3 others are here as spares, so I can have them running, but not connected to BT and see if they change at all

I saw you last post too.

Would be interesting to see if any do change.

kinmel · Jun 10, 2010, 20:46:41

The 2 local and the 3 spares are all now on channel 13 and within 50ft of each other, only 2 are V6 and the rest are various V5

Polchraine · Jun 10, 2010, 20:50:07

Quote from: kinmel on Jun 10, 2010, 20:46:41
The 2 local and the 3 spares are all now on channel 13 and within 50ft of each other, only 2 are V6 and the rest are various V5

V5 on Ch 13 - mine does not offer it!

So, if yours stay that way until the morning, I have a "fault" or RF conditions I cannot see. If yours change too it will be firmware.

I'm off to the gym for a couple of hours ...

Thanks all for your comments.

MisterW · Jun 10, 2010, 20:57:52

QuoteV5 on Ch 13 - mine does not offer it!

What firmware ?

kinmel · Jun 10, 2010, 23:04:58

Quote from: MisterW on Jun 10, 2010, 20:57:52
What firmware ?

I have physically checked the routers tonight and confirm that both V5.29.107.12 and V5.29.107.19 have channels 1 to 13 ( plus Auto ) - 13 is 2472MHz on both firmwares.

Polchraine · Jun 11, 2010, 00:00:30

Quote from: MisterW on Jun 10, 2010, 20:57:52
What firmware ?

Just checked ... it is even worse, a v4 ! But at least it does not change channels. My v5 is currently in my other house 600 miles away in Scotland! I brought the wrong one back with me two weeks ago.

Adam · Jun 11, 2010, 00:44:17

Some channels are not supported on US designed stuff. You're better off trying lower channels than higher. If I am not mistaken most US kit will only support 11 channels, so running the router on any channel above that is asking for incompatibility issues.

Polchraine · Jun 11, 2010, 01:13:12

Quote from: Adam on Jun 11, 2010, 00:44:17
Some channels are not supported on US designed stuff. You're better off trying lower channels than higher. If I am not mistaken most US kit will only support 11 channels, so running the router on any channel above that is asking for incompatibility issues.

Adam,

if you read through you will understand why I need Ch13. The only US designed (with far East input) equipment I am using is the 2700 which was designed with Ch13. All of the PCs and associated wireless cards are known to work on Ch13 without problems. The router also runs fine on Ch13 and I can get very good throughput rates but the problem is the fact the router keeps changing channel from C13 and C12 to Ch1.

Polchraine · Jun 11, 2010, 08:45:38

At 2:00 AM it was running fine and still on Ch13.

As of 08:30 AM - it has completely disappeared. No signal on any channel - the other two of mine remain on Ch9 and Ch5 and all of the neighbours are off. No entry in the log ...

I'll dig around a little more when I get back and see what happens when I reselect Ch13.

kinmel · Jun 11, 2010, 09:10:28

Quote from: kinmel on Jun 10, 2010, 23:04:58
I have physically checked the routers tonight and confirm that both V5.29.107.12 and V5.29.107.19 have channels 1 to 13 ( plus Auto ) - 13 is 2472MHz on both firmwares.

/MisterW

I have found out about a v5.29.117.6 that also has a channel 13 and on at least 2 occasions that router jumped off channel 13. Which firmwares do you know of that don't have channel 13 ?

I suspect it is reacting to other routers using channel 13.

/Polchraine

Can you not set it to AUTO and then it will channel hop if needs be.

Polchraine · Jun 11, 2010, 10:14:29

Quote from: kinmel on Jun 11, 2010, 09:10:28

/Polchraine

Can you not set it to AUTO and then it will channel hop if needs be.

If I select Auto it always defaults to Ch1 and tends not to move. That results in a throughput of around 1-2Mbps ... It seems to like Ch1 and ignores all of the interference from the other WAPs even though throughput is low.

Rik · Jun 11, 2010, 10:20:21

Curiouser and curiouser. It will be interesting to see how the new unit performs. Don't worry about being an interloper - everyone is welcome here, even more so if they bring interesting challenges.

MisterW · Jun 11, 2010, 10:42:17

QuoteWhich firmwares do you know of that don't have channel 13 ?

I don't know of any TBH although I've not seen a V4 one.
I've got 5.29.107.12 at home and that's got ch 13 , although no Auto option IIRC.
Just checked here in the office which is 5.29.117.6 and that's got ch 13 and an Auto option. It's currently set to Auto and is on ch 11.

Polchraine · Jun 11, 2010, 10:49:45

Have a look at the attached images.

I left all three running on Ch5, Ch9 & Ch13 at 2 AM.

The first image shows what was there first thing this morning with the third WAP missing ...

The second shows the return of the missing one and the reason why Ch1 is not a good idea ...

Just after posting, I went back to look again ... Ch5 and Ch9 are still there along with Goldmedal, BTOpenzone and the BTHomeHub-A50A but the v6 has gone again.

[attachment deleted by admin]

MisterW · Jun 11, 2010, 18:32:12

If I read that plot correctly, that BTHomeHub is sure pushing out some power!!!
I presume the BTOpenzone is the public access point in the nearby cafe you refer to in your first post,
I wonder if that could be causing any issues with a v6 ? You do have the Openzone disabled on YOUR v6 I assume ?

Polchraine · Jun 11, 2010, 19:51:44

Quote from: MisterW on Jun 11, 2010, 18:32:12
If I read that plot correctly, that BTHomeHub is sure pushing out some power!!!
I presume the BTOpenzone is the public access point in the nearby cafe you refer to in your first post,
I wonder if that could be causing any issues with a v6 ? You do have the Openzone disabled on YOUR v6 I assume ?

The HH power goes up and down significantly and that OZ is from the same source ... the other OZ may have been off at that time but is not always easy to see where I am, but near the v6 it can be seen.

My hub is set for my own WiFi only all other services are off.

Watching during teh day and have seen a couple of jumps to Ch1, along with several diasappearing acts.

I have the new one here now, just need to find time to configure it and get it running ... I will move the v4 to Ch1 and put the old v6 on Ch9 and new on Ch13.

Polchraine · Jun 14, 2010, 11:12:09

I have not had an opportunity to install the new 2700HGV over the weekend but have seen the existing one moving from 13 to 1 and then disappearing, back on at 13, disappearing &c &c. No entries in the logs whatsoever ...

It is nice and stable on the line holds sync down to about 2dB (Margin) and occasionally lower. Considering the line length and attenuation I am getting excellent results both up and down and they are consistent throughout the day.

My gut feel now is there is a possible failure in the wireless controller ...

Rik · Jun 14, 2010, 11:29:06

It does sound possible.

kinmel · Jun 14, 2010, 11:50:11

All those I put on Ch 13 last week are still on it.

Polchraine · Jun 16, 2010, 00:13:59

Well, the new one lasted an hour! Went from Ch13 to Ch1 - the GUI page still showed Ch13 - switched to Ch12 then Ch13 and currently back there but for how long?

Also noted that on Ch1 it appears to be around 15dB higher - but I'll look into that later.

Polchraine · Jun 22, 2010, 14:29:35

I have installed the replacement and as mentioned above it did a couple of channel hops initially but then settled down for almost a week. Late last night it jumped to Ch1 as seen with the inSSIDer spectrum analyser whilst the setup still stated 13! Saved 13 in the config again, but to no avail, so saved it as Ch6 (random) and it moved and then Ch13. First thing this morning it is back on Ch1, so moved it again but it has moved again.

So, the two v6 units will not stay on Ch13 and the v4 only goes to Ch12 ... Looks as though I may have to use 12, 8 and 4 - whilst positioning the one on Ch4 as far away from the others as possible.

BT will not accept there being a problem - so, I wonder whether to go direct to 2Wire for their comments ...

pctech · Jun 22, 2010, 15:31:05

Unlikely 2wire will help as they only manufacture for carriers and so the devices are customised to their requirements and tech support is down to them.

Polchraine · Jun 22, 2010, 22:48:01

Quote from: pctech on Jun 22, 2010, 15:31:05
Unlikely 2wire will help as they only manufacture for carriers and so the devices are customised to their requirements and tech support is down to them.

It seems as though only the user interface is customized - the core software modules will be identical and that will include the software modem, demodulation, switch capability, wireless channel management ...

Polchraine · Jun 24, 2010, 09:14:28

Quote from: pctech on Jun 22, 2010, 15:31:05
Unlikely 2wire will help as they only manufacture for carriers and so the devices are customised to their requirements and tech support is down to them.

The response from 2wire:

At this current time, your issue will require additional analysis. You will receive a response once we have thoroughly researched your issue.

You may reply directly to this message or visit support.2wire.com to respond to this ticket.
Visit the 2Wire Support Site to view the ticket history: http://support.2wire.com/?page=viewincident&id=999999